Function guile_sys::__gmpn_gcdext_1

pub unsafe extern "C" fn __gmpn_gcdext_1(
    arg1: *mut mp_limb_signed_t, 
    arg2: *mut mp_limb_signed_t, 
    arg3: mp_limb_t, 
    arg4: mp_limb_t
) -> mp_limb_t